Priority Queue

Added Priority Queue C++ code.

Author: itsAshna

data_structures/Cpp/Queue/Priority Queue

@@ -0,0 +1,34 @@
+#include <iostream> 
+#include <queue> 
+
+using namespace std; 
+
+void showPriQueue(priority_queue <int> pri_queue) {
+    while (!pri_queue.empty()){ 
+        cout << pri_queue.top()<<" "; 
+        pri_queue.pop(); 
+    } 
+} 
+
+int main (){ 
+    priority_queue <int> myqueue;
+    int number_values;
+
+    cout << "Enter the total number of element: ";
+    cin >> number_values;
+
+    for (int index = 0; index < number_values; index++) {
+        myqueue.push(index); 
+    }
+
+    cout << "Values in myqueue : ";
+    showPriQueue(myqueue); 
+    cout << "\nSize of myqueue : " << myqueue.size() << endl;
+    cout << "First element of the myqueue : " << myqueue.top() << endl; 
+    cout << "Pop element from myqueue ";
+    myqueue.pop(); 
+    cout << "\nValues in myqueue after pop : ";
+    showPriQueue(myqueue); 
+
+    return 0; 
+}